Patents Assigned to Baumann Federn AG
  • Connection of spring ends
    Patent number: 9394957
    Abstract: A connecting of spring ends of a strand of springs, wherein it is provided that the winding diameter of the end windings is reduced, at least in the area of each of the two ends, and the pitch of the end windings is increased in the area of each of the two ends relative to the pitch in the spring body, and that the two ends overlap in contact with one another over a section and are finally connected to one another.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: July 19, 2016
    Assignee: BAUMANN FEDERN AG
    Inventors: Roland Meier, David Scheidegger, Andreas Hohl
  • Wrap around spring clutch
    Patent number: 6164426
    Abstract: At the electromagnetically controlled wrap around spring clutch a braking spring (14) designed as a wrap around spring is foreseen on the driven shaft (4) in addition to the clutch spring (8) acting between the driving shaft (3) and the driven shaft (4), which braking spring (14) is also switched by the control magnet (11), such that if the magnet is excited the driven shaft (4) is released, but at a currentless magnet the driven shaft (4) is immediately braked and blocked in the direction of the drive.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: December 26, 2000
    Assignee: Baumann Federn AG
    Inventor: Peter Iten